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Fig. 3 | Nanoscale Research Letters

Fig. 3

From: Using Positively Charged Magnetic Nanoparticles to Capture Bacteria at Ultralow Concentration

Fig. 3

Illustration of the procedures of bacteria capture. E. coli in suspension are respectively mixed with NP+ and NP−, followed by 10 min incubation. The “magnetized” bacteria were attracted onto the wall of the vial by a magnet. After the removal of the remaining solution, bacteria were captured by NPs, washed using PBS, and counted from the number of the bacterial colonies

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